Singeing and warping machine



uly 30, 1 4 J. J. CALDWELL ET AL 1,722,895

SINGEING AND WARPING MACHINE Filed July l6,1928 4 Sheets-Sheet 1.

vmsJ 40310? f avid 61 406 2 Qnvcmlou July 1929. J. J. CALDWELL ET AL 1,722,395

I STNGEING AND WARPING MACHINE V Filed July 15, 19223, 4- Sheets-Sheet 2 y 1 9- J. J. CA-LDVVELL ET AL 1,722,895

SINGEING AND WARPING MACHINE Filed July 16, 1928 4 Sheets-Sheet 5 MEASURING DEV/CE July 30, 1 29- J. J. CALDWELL ET AL l,722,85

SINGEING A ND WARPING MACHINE Filed July 16,. 1928 4 Sheets-Sheet 4 gwuntozd fimesJflaidwefi David Gravel Patented July 30, 1929.

UNITED STATES PATENT OFFICE.

JAMES JONATHAN CALDWELL, F CHICKAMAUGA, GEORGIA, AND DAVID GRAVEL, OF

CHATTANOOGA, TENNESSEE, ASSIGNORS TO STANDARD COOSA THATCHER COM- PANY, OF CHATTANOOGA, TENNESSEE,

A CORPORATION OF TENNESSEE.

SINGEING AND WARPING MACHINE.

Application filed July 16, 1928.

Our invention relates to singeing and warping machines and it is an object of the invention to provide in a combined singeing and warping machine electrically operated means by which theburners will be automatically turned off whenever a yarn is broken and the machine is stopped.- In machines now in use the burner is turned off a little before the yarn travel ceases, so as to avoid burning the yarn, and is turned on a little after the yarn begins to travel again, for the same reason. The resultof this is that there are portions of the yarn where the singeing is incomplete, since the gassing is not started and stopped simultaneously with the movement of the yarn. The result of this is of course an imperfectly singed yarn. Our invention aims to correct this by having the singers stop instantly with the stopping of the yarn and to startinstantly with the resumed travel of the yarn.

Another object of the invention is to provide a machine of the type just described in which the operation of the burners will be electrically controlled, whereby a more flexible machine is secured.

A still further object is to provide in combination with a machine of the kind described, means for automatically controlling operation of the burners and the travel of the yarn in response to a device for measurin g predetermined lengths of yarn, whereby the travel of the yarn will be stopped when a predetermined length has passed through the machine.

A further general object of the invention is to provide a singeing machine which will require a minimum of supervision by the operator and which may further be controlled by mechanism placed remotely from the machine.

A still further object is to provide a method of singeing and warping by a single operation.

Referring to the accompanying drawings which are made a part hereof and on which similar reference characters indicate similar parts:

Figure 1 is a side elevation of a singeing and warping machine;

Figure 2 is a side elevation of an enlarged portion of a machine embodying our invention;

Serial No, 293,007.

Figure 3 is a side elevation of the side opposite to that shown in Figure 2;

Figure 4 is a longitudinal section looking in the direction shown in Figure 2, with parts shown more in detail;

Figure 5 is a wiring diagram for the control circuits;

Figure 6 is a plan view of the burner;

Figure 7, a side elevation of the same;

Figure 8 is an enlarged detail of a part shown in Figure 5; and

Figure 9, a plan view of the same.

In the drawings, reference character indicates the legs of the machine supporting cross members 21, 22 and 23, constituting the frame work of the machine. As seen in F igure 1, numeral 24 indicates the creel containing a plurality of cheeses 25 having yarns wound thereon in a well known manner. These cheeses are supported on spindles and the yarns are drawn off axially, passing through guides indicated at 26. From the guides the yarns pass to a comb 27, thence over a bank of burners 28, a rod or roller 29, a large roller 30, back over a second bank of burners 31, over a roller or rod 32, a large roller 33, back over a smaller roller 34 to a gathering device 35 and then to a balling machine 36 driven by a motor 37 by means of a belt 38.

The burners comprise perforated pipes 136 which extend across the frame of the machine and are operatively connected with the rock arms 40 by means of which they are oscillated. The end of the pipe has a gas tight lit witha valve 137 on the upper end of a pipe 138. The valve 137 is a rotary gas valve of well known type such as used for example on gas stoves. The pipes 138 are connected to a lead-in gas pipe 139. A pipe 140 is connected below the valve 137 and has on its upper end a pilot valve 141 which remains constantly burning and is in position to ignite the burners when they are rotated to operative position. The burners are operated by means of rock arms 40 pivotally connected at 41 to a common operating bar 42. This bar is pivotally connected at 43 to a link 44. The other end of the link is pivoted at 45 to a bar 46. Burners 31 are operated by means of rock arms 47 pivotally connected at 48 to a common operating bar 49. A link 50 pivoted ext 51 to the bar 49 and at 45 to the bar 46 furnishes operative connection between the bar 45 and the burner rock arms. The bar 46 provideo at its inner side with a guide lug 52 for a rod 53, and a pair 01" springs 54 and 55 are positioned at opposite sides of the guide lug, the outer ends of the springs resting respectively against collars 56 and 57. It will be seen from Figure 4 that movement of the rod 46 in either direction will be cushioned by one of the springs 54 or 55. A lever 58 is con nected by a link 59 to the bar 46 and is secured at 60 to rock shaft 60 extending across the frame of the machine. The rock shatthas a depending arm 61. A bracket 62 is secured on the lower end of this arm. To this bracket is flttZlCllOtr a chain 63 passing over an idle pulley 64 and having a weight 65 secured on the other end thereof. The bracket'62 has a portion 66 against which a latch 67 engages during operation of the machine. This latch 67 is pivotally secured at 68 to a bracket 69 secured to the frame of the machine. The latch 67 has an outer weighted end 69 which is normally held during operation in an elevated position by an electromagnet 70. This magnet is in circuit with the motor 37 and is energized whenever the motor is operated and is deenergized whenever the circuit to the motor is broken. The motor 37 is a three-phase A. C. motor, having terminals 71, 72 and 73. 74, 75 and 76 indicate the lead-in wires. The wire 74 is connected at 77 to the switch shown as a whole at 83. The wire 75 is connected at 78 to the relay magne't,'and the wire 76 is connectedat 79 also to the switch and is also connected at 80 to one side of a starting switch 81. The wire 75 is also connected at 82 to the switch 83. A wire 84 connects through a cut 85 with a pool 01 mercury and is connected at its other end at 86 to the relay core 87 and is in circuit with the wire 75 at 78. A core 88 normally dips in the pool of mercury at 89. This core is connected by means of a wire 90 with the line 7 .1. in circuit with the motor. Wi1'es91 and 92 connect wires 71 and 72 to energize the electro-magnet 70 whenever the circuit to the motor 37 is closed. A wire 93 is secured at 94 on the solenoid 95 and at its other end connects the line 96. The opposite side of the solenoid 95 connects through line-'97 around the core 87 through the line 98 with the line 99. Lines 100 and 101 secured respectively at 102 and 103 to the lines 98 and 93 lead to opposite posts 104 and 105 on a stop switch 106. Wires 107 and 108 lead across to posts 109 and 110 to a stop switch 111 placed on the opposite side of the machine. Wires 112 and 113 lea d from lines 114 and 115 to posts 116 and 117 on the starting switch 118.

Secured upon a standard of the machine at one side isa bracket 119. This bif'acketcarries a tension device 120 through which a thread 122 passes. A wire 121 extending from one side of the bracket 119 forms a supporting means for the thread 122. 1 wire 123 is loosely pivoted at 124 to the wire 99. This wire 123 has a bent outer end 125 which normally is held in an elevated position by means of the thread 122. The wire 123 has a lower end bent at 126, as seen in Figure 5. lVhen the wire 123 has its outer end on the thread 122 the arm 126 is held out of contact with the wire 96. When however the thread 122 is broken so as not to support the wire 123 this wire will drop and the bent portion 126 will engage the wire 96 to close the circuit through the coil of the solenoid 95 to raise the end 89 out of contact with the inercury 85. This breaks the circuit through the wires 84 and 90 to open the circuit to the motor, and consequently stop the motor.

Instead of having the motor stop by breaking of a thread as just indicated, it may be readily seen that if the switch 81 or the switch 106 is closed the circuit willbe closed to energize the solenoid 95 to stop the motor in the same way.

Instead of having the motor stopped upon breaking of a thread we also provide automatic means for stopping the motor when thread of a predetermined length has passed through the machine. For this purpose we useany well known automatic measuring device shown as a whole at 130. This device ha a wheel 131 which makes one revolution during the travel of the thread through a predetermined length. The wheel 131 has a notch in its periphery into which a latch 132 drops when the notch has come in register therewith. The latch 132 is secured to a chain 133, secured on the outer end 01 a lever 134. This lever is pivoted at 135 on the frame of the machine and rests upon a stop switch 111 or 106 on each side of the machine. When a predetermined length of thread has passed '98 to stop the machine in the same way in which it is stopped when a thread breaks. The details of the metering'devic-e have not been shown sine-e any suitable metering device may be used. 7

The operation of the machine is as follows:

The wire 123 is first placed in the position shown at the right hand of Figure 5 to restupon the thread 122. Thisholds the bent arm 126 out of contact with the wire 96. Manually operable switch 118 or 81 is then closed to close the circuit through the wires 114, 84, 75, 115 and 76 to energize the solenoid '87. This closes the switch 83 to close the circuit between the W116S741, 75 and 76 and the line 73, 72 and 71 to the motor 37. .Closingoi the switch 83 closes the circuit through the line 75, 84 and 90 through the arm of the switch 83 back through the wire 76. The solenoid 87 is then energized from the lead-in lines 75 and 7 6 through the mercury switch 88, and is therefore not dependent upon either of the switches 81 and 118 which may now be opened. The solenoid 7 0 is energized through wires 91 and 92 from the lead-in lines 71 and 72 to the motor. The latch 67 will therefore be held in an elevated position to hold the arm 61 in the position shown in Figure 41 and the machine will continue to operate. l/Vhen however a thread 122 becomes brok n, or thread of a predetermined length has passed through the machine or manually operable switch 106 or 111 is closed, the circuit will be closed between the wires 93 and 98 to energize the solenoid 95 to lift the core 88 out of contact with the mercury in the cup 85. This then breaks the circuit through the line .84, core 88, line 90, switch 83 and line 75 and 7 6 to (lo-energize the magnet 87, whereupon the springs 83 will open the switch to the motor 37 and likewise tie-energize the magnet 70. The latch 67 will therefore release the bracket 62 to allow the weight to swing the arm 61 to the left as shown in Figure 4.

Through the lever mechanism above described the burners will be moved to off positions.

If it is desired to stop operation of the motor on the gasing burners the operator nay manually close the stop switch 106 or 111 and close the circuit to the solenoid 95 in the same manner as it is closed upon the breaking of a strand of yarn.

In Figure 3 we show application of an automatic measuring device whereby the machine is stopped when yarn of predetermined length has passed through the machine. As described, this comprises means for operating either of the switches 106 or 111 by means of a lever 134 and a chain 133.

It should therefore be apparent that the electric control and operating means of our device lends the machine to a flexibility impossible with a mechanicaly opera-ted stopping means. The control means may be placed at any position convenient to the operator and the stop switches and starting switches may also be placed at a convenient spot. WV-e prefer to mount switches 106 and.

111 on each side of the machine adjacent the starting switches 81 and 118. They however might be placed at any position desired. lVe preferably mount the electrically controlled apparatus as shown at 1413 in Figure 4. This apparatus however might be placed at any other position found convenient, as it is a very simple electric wiring proposition to move the control apparatus as designed. l/Vires 1441 and 145 lead to other machines whereby a plurality of operations may be carried on at the same time.

It will be obvious to those skilled in the art that various changes may be made in our device without departing from the spirit of the invention, and we, therefore, do not limit ourselves to what is shown in the drawings and described in the specification, but only as set forth in the appended claims.

Having thus fully described our said invention, what we claim as new and desire to se cure by Letters Patent, is:

1. In a singeing and warping machine a plurality of burners arranged on different levels, a motor for driving yarns in successive runs above the burners on the different levels, means for stopping the yarns and turning off the gas on breakage of the yarn, the said means comprising means biased to move the burners to inoperative position, and electrically actuated means adapted to prevent operation of the last named means so long as the motor which drives mechanism for moving the yarns across the burner is operating, substantially set forth.

2.. In singeing and warping machine a plurality of devices for applying heat to the yarns, a motor for moving the yarns lineally past said devices, means for moving the heating devices av-ray from the yarns, and simultaneously stopping the travel of the yarns comprising a lever opcratively connected to the heat applying devices to move them into and out of operative position, a latch for hold ing said lever to hold the burners in operative position an electro-magnet in control of said latch, the said electro-magnet being in circuit with the motor for moving the yarns past the heat applying devices, whereby the said latch will be held in operative position only when the said motor is operating, substantially as set forth.

3. A singeing and warping machine com prising means for driving mechanism for moving a plurality of yarns successively across singeing devices, a motor for operating said means, a solenoid in circuit with said motor, a lever in control of means for operating the singeing devices and biased to move in a direction to prevent operation of said singeing devices, the said lever being held against moving to inoperative position by the said solenoid, substantially as set forth.

4;. A singeing and warping machine comprising means for moving a plurality of yarns in the direction of their length, heat applying devices for singeing said yarns, means for moving said singeing devices toward and from said yarns and for simultaneously extinguishing and igniting said singeing devices as they move away from and into singeing posit-ion, a motor for operating the yarn moving means, an auton'iatically operable switch in the circuit to said motor, manually controlled switches for opening said automatic switch, and means on the machine for closing said manually operable switch when yarn of a predetermined length has passed through the machine, substantially as set forth.

5. A singeing and warping machine comprising means for moving a plurality of yarns in the direction of their length, gassing means movable toward and from said yarns, means for extinguishing said gassing means as they -move from the singeing position, a motor for driving said yarn moving means, an electromagn ct in circuit with. said motor in control of means for holding said singeing means in operative position when said motor is operating and for moving them out of operative position when said motor is inoperative, substantially as set forth.

6. A singeing and Warping machine comprising means for moving a plurality of yarns successively across singeing devices, a motor for operating said means, an electro-magnet in circuit with said motor, means controlled by the said electro-magnet for holding the singeing devices in singeing positi an adjacent the yarn, means operable upon the breaking of a yarn for breaking the circuit to the said motor to stop movement of the yarns and to deenergize the electro-magnet to cause the singeing devices to move away from singeing position, substantially as set forth.

7. A singeing and Warping machine comprising means for moving a plurality of yarns successively across singeing devices, a motor for operating said means, an electro-m-agnet in circuit with said mot-or, means-controlled by the said electro-magnet for holding the singeing devices in singeing position adjacent the yarn, means operable upon the breaking of a yarn for breaking the circuit to the said motor to stop movement of the yarns and to deenergize the electro-n'iagnet to cause the singeing devices to move away from singeing position, and manually operable means for starting and stopping the said motor independently of the breaking of a yarn, sub stantially as set forth.-

8. A sing-sing and Warping machine comprising means for moving a plurality of yarns successively across singeing devices, a motor for operating said means, an electro-magnet in circuit With said motor, means controlled by the said elcctro-magnet for holding the singeing devices in singeing position adjacent the yarn, meansoperable upon the breaking of a yarn for breaking the circuit to the said motor to stop movement of the yarns and to deenergize the electro-magnetto cause the singeing devices to move away from singeing )osition, and means for breaking the circuit to said motor independently of the means op erated by breaking of a yarn When yarn of a predetermined length has passed through the machine, substantially as set fort-h.

In Witness whereof We have hereunto set our hands at Chattanooga, Tennessee, this ninth day of July, A. D. nineteen hundred and twenty-eight.

JAMES JONATHAN CALDWELL. DAVID GRAVEL. 

